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authorslush <slush@centrum.cz>2015-01-23 16:47:41 +0100
committerbitcoindev <bitcoindev@gnusha.org>2015-01-23 15:48:24 +0000
commit54080525effc280b2dac265a582890566a2aee20 (patch)
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parentc6e1be5e968d6f50d342d0d3841016574894d803 (diff)
downloadpi-bitcoindev-54080525effc280b2dac265a582890566a2aee20.tar.gz
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Re: [Bitcoin-development] SIGHASH_WITHINPUTVALUE
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+Subject: Re: [Bitcoin-development] SIGHASH_WITHINPUTVALUE
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+
+Correct, plus the most likely scenario in such attack is that the malware
+even don't push such tx with excessive fees to the network, but send it
+directly to attacker's pool/miner.
+
+M.
+
+On Fri, Jan 23, 2015 at 4:42 PM, Alan Reiner <etotheipi@gmail.com> wrote:
+
+> Unfortunately, one major attack vector is someone isolating your node,
+> getting you to sign away your whole wallet to fee, and then selling it to a
+> mining pool to mine it before you can figure why your transactions aren't
+> making it to the network. In such an attack, the relay rules aren't
+> relevant, and if the attacker can DoS you for 24 hours, it doesn't take a
+> ton of mining power to make the attack extremely likely to succeed.
+>
+>
+>
+>
+> On 01/23/2015 10:31 AM, Tamas Blummer wrote:
+>
+> Not a fix, but would reduce the financial risk, if nodes were not relaying
+> excessive fee transactions.
+>
+> Tamas Blummer
+>
+>
+>
+>
+>
+> ------------------------------------------------------------------------------
+> New Year. New Location. New Benefits. New Data Center in Ashburn, VA.
+> GigeNET is offering a free month of service with a new server in Ashburn.
+> Choose from 2 high performing configs, both with 100TB of bandwidth.
+> Higher redundancy.Lower latency.Increased capacity.Completely compliant.
+> http://p.sf.net/sfu/gigenet
+> _______________________________________________
+> Bitcoin-development mailing list
+> Bitcoin-development@lists.sourceforge.net
+> https://lists.sourceforge.net/lists/listinfo/bitcoin-development
+>
+>
+
+--047d7bf18db0400f4a050d53b717
+Content-Type: text/html; charset=ISO-8859-1
+Content-Transfer-Encoding: quoted-printable
+
+<div dir=3D"ltr">Correct, plus the most likely scenario in such attack is t=
+hat the malware even don&#39;t push such tx with excessive fees to the netw=
+ork, but send it directly to attacker&#39;s pool/miner.<div><br></div><div>=
+M.</div></div><div class=3D"gmail_extra"><br><div class=3D"gmail_quote">On =
+Fri, Jan 23, 2015 at 4:42 PM, Alan Reiner <span dir=3D"ltr">&lt;<a href=3D"=
+mailto:etotheipi@gmail.com" target=3D"_blank">etotheipi@gmail.com</a>&gt;</=
+span> wrote:<br><blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8e=
+x;border-left:1px #ccc solid;padding-left:1ex">
+ =20
+ =20
+ =20
+ <div bgcolor=3D"#FFFFFF" text=3D"#000000">
+ Unfortunately, one major attack vector is someone isolating your
+ node, getting you to sign away your whole wallet to fee, and then
+ selling it to a mining pool to mine it before you can figure why
+ your transactions aren&#39;t making it to the network.=A0 In such an
+ attack, the relay rules aren&#39;t relevant, and if the attacker can Do=
+S
+ you for 24 hours, it doesn&#39;t take a ton of mining power to make the
+ attack extremely likely to succeed.<span class=3D""><br>
+ <br>
+ <br>
+ <br>
+ <br>
+ <div>On 01/23/2015 10:31 AM, Tamas Blummer
+ wrote:<br>
+ </div>
+ <blockquote type=3D"cite">
+ =20
+ <div>Not a fix, but would reduce the financial risk, if nodes were
+ not relaying excessive fee transactions.</div>
+ <div><br>
+ </div>
+ <div>
+ <div style=3D"color:rgb(0,0,0);font-family:Helvetica;font-size:12px=
+;font-style:normal;font-variant:normal;font-weight:normal;letter-spacing:no=
+rmal;line-height:normal;text-align:start;text-indent:0px;text-transform:non=
+e;white-space:normal;word-spacing:0px">Tamas
+ Blummer</div>
+ <div style=3D"color:rgb(0,0,0);font-family:Helvetica;font-size:12px=
+;font-style:normal;font-variant:normal;font-weight:normal;letter-spacing:no=
+rmal;line-height:normal;text-align:start;text-indent:0px;text-transform:non=
+e;white-space:normal;word-spacing:0px"><br>
+ </div>
+ </div>
+ <br>
+ </blockquote>
+ <br>
+ </span></div>
+
+<br>-----------------------------------------------------------------------=
+-------<br>
+New Year. New Location. New Benefits. New Data Center in Ashburn, VA.<br>
+GigeNET is offering a free month of service with a new server in Ashburn.<b=
+r>
+Choose from 2 high performing configs, both with 100TB of bandwidth.<br>
+Higher redundancy.Lower latency.Increased capacity.Completely compliant.<br=
+>
+<a href=3D"http://p.sf.net/sfu/gigenet" target=3D"_blank">http://p.sf.net/s=
+fu/gigenet</a><br>_______________________________________________<br>
+Bitcoin-development mailing list<br>
+<a href=3D"mailto:Bitcoin-development@lists.sourceforge.net">Bitcoin-develo=
+pment@lists.sourceforge.net</a><br>
+<a href=3D"https://lists.sourceforge.net/lists/listinfo/bitcoin-development=
+" target=3D"_blank">https://lists.sourceforge.net/lists/listinfo/bitcoin-de=
+velopment</a><br>
+<br></blockquote></div><br></div>
+
+--047d7bf18db0400f4a050d53b717--
+
+